Gearbox Paul wrote:
Finally been home for a couple of days and installed all the parts and converted to Amsoil 0W40. Saw nice improvement in acceleration, mid-range throttle response and ease in keeping the engine in powerband. However, I did not see any improvement in top speed. I can hit rev limiter in 4th, can hit 11,000 rpm in 5th and about 9500 in 6th. Still stuck at about 110 km/h top speed.
That's about right considering your weight and the fact that you're sitting upright. I feel kind of bad that I didn't twig onto that at the start when you first asked about the 'Pack. I assumed that you were tucked in as you mentioned top speed. I'm sorry I didn't pick up on that
I weigh the same but the difference between being tucked in and upright is an increase of +20 KPH typically. This depends a bit on the road, you'll get more when following traffic (draft) or on slight downhill roads etc but on average, what I've experienced is a good 20 KPH more. Bouncing off the rev limiter in 6th is typically Parksville to Nanaimo pushing traffic out of the left lane (so, some draft advantage due to the traffic and everyone is already doing 110 or better).
The difference is remarkable but on this bike, sadly, you'll never get to the rev limiter in 6th upright. What is really interesting (in this case) would be to wind it out upright at 110, keep the throttle pinned, and then tuck in and watch the clock. I think you'll be surprised at what happens.
Also...once you're 'up there' it's also WAY easier to keep it 'up there' with the 'Pack. Quite frankly, with it (the 'Pack) you'll never get 'up there'
Almost all of my high speed riding is a combination of tucked and upright. Normally on the freeway I'm tucked in until I come up behind traffic in the left lane and then I'm upright until it's time to move. When passing on single lane roads, always tucked in (unless I'm lazy).
Got to say though, you picked up on pretty well every benefit of the 'pack including the increased throttle response and ease of keeping it in the power band. Not many people are discerning enough to notice that. With the stock wire and plug there is actually a spot in the stock ECU's map where the designers missed dialing in a cell in the VE table. Periodically the engine will stumble when it hits that load and RPM range very briefly. The revised ignition in the 'Pack covers up that error nicely and I'm really glad you noticed it
Only two other people have ever commented on that.
But...sorry I didn't pick up on the fact you were riding upright!